ITALIC 8.0

Verrucaria anceps Kremp.

in Hepp, Flecht. Eur.: nr. 686, 1860.

Synonyms: Polyblastia anceps (Kremp.) Servít

Distribution: N - Ven, TAA (Dalla Torre & Sarnthein 1902), Piem (Isocrono & al. 2004), VA (Piervittori & Isocrono 1999).

Description: Thallus crustose, endosubstratic or hemiendosubstratic, continuous to rimose-areolate, ochre-grey to brown, more or less sharply delimited. Cortex 10-20 μm thick, sometimes overlain by a thin (-5 μm) epinecral layer; algal layer c. 80 μm thick. Perithecia very numerous (to 400/cm²), 1-2 per areole, ½–¾ immersed, leaving shallow pits in the rock, the visible part c. 0.2 mm across, flattened to hemispherical, black, somehow shiny, depressed around the ostiole. Involucrellum reaching at least to mid-level, adpressed to slightly diverging from exciple at base, rather homogeneously thick (30-50 μm), sometimes somewhat thinner or thicker (-70 μm) in lower part; exciple globose, 0.15-0.20 mm across, the wall colourless to brownish 10-15 μm thick; hamathecium of simple, 20-30 μm long, thin periphyses and periphysoids, interascal filaments absent; hymenial gel hemiamyloid, I+ red (I+ blue at very low concentrations of I), K/I+ blue. Asci 8-spored, clavate, I-, fissitunicate, the wall thickened above, with an ocular chamber, dehiscent by extrusion of an endotunica to form a delicate rostrum, Verrucaria-type. Ascospores 1-celled, hyaline, narrowly ellipsoid, 17-24 x (6-)7-9 μm. Photobiont chlorococcoid. Spot tests: K-, C-, KC-, P-, UV-. Chemistry: without lichen substances.

Note: on limestone and dolomite in humid-shaded situations below treeline; reported from a few localities in the mountains of Central Europe and the Southern Alps.

Growth form: Crustose endolithic

Substrata: rocks

Photobiont: green algae other than Trentepohlia

Reproductive strategy: mainly sexual

Poorly known taxon in need of further study

Commonnes-rarity: (info)

Alpine belt: absent

Subalpine belt: very rare

Oromediterranean belt: absent

Montane belt: rare

Submediterranean belt: very rare

Padanian area: absent

Humid submediterranean belt: absent

Humid mediterranean belt: absent

Dry mediterranean belt: absent

pH of the substrata:

1

2

3

4

5

(info)

Solar irradiation:

1

2

3

4

5

(info)

Aridity:

1

2

3

4

5

(info)

Eutrophication:

1

2

3

4

5

(info)

Poleotolerance:

0

1

2

3

(info)

Altitudinal distribution:

1

2

3

4

5

6

(info)

Predictive model

Index Fungorum GBIF

Zschacke, H. (1934) Epigloeaceae, Verrucariaceae und Dermatocarpaceae. In: Dr. L. Rabenhorst‘s Kryptogamen-Flora, Band 9, Abt. 1, Teil 1. Akademische Verlagsgesellschaft, Leipzig, 695 pp. - Public Domain